Hello. I had a problem when I enter the game in general chat in your world has been waiting for that: X Error OQ Intalizing 
                                                                  X realmlist: write the name of a public server where I played a long time ago 
                                                                   X Error Interface / Addon / oqueue / Attempt to oqueue.lau Index Field 'SHORT_BGROUPS' 

What could be the problem? Thank you in advance for your answers :)

You need to reset your WoW realm list. 

This happens when you modify it to play on a private server. 

To me it says error: Interface\addons\oqueue.lua:22886; attempt to concatenate a nil value.

^ That is something we will have to look at. 

This addon also doesn't give me to view linked items, achievements and quests when someone share or get. I've tried with interactive and non-interactive but nothing helped until i disabled addon. 

There is a bug somewhere which causes this to happen intermitently. We haven't been able to reproduce the bug but are still looking for it. 

that you can reset it?

ty i fix problem :) cool addons ^^